My experience with router overseas.

[bert64]

Cannot agree more on this. Wired is the most reliable connection even if its old tech.
However some people just don't like wires/cables, that's why there are these "wireless" stuffs...

Yeah, i can understand not wanting cables on a phone that moves around...
But it makes no sense whatsoever on a static device like a tv, that not only stays in one place but also already has a cable for power at least.

 

[Wataru]

Tidyness, i have a printer in my home that is right next to a LAN point. But i gave that LAN point to a Wifi POE AP and just let my printer run on Wifi

Especially for devices like printers and IOT stuff that run on 100Mbps LAN, usually their Wifi 2.4Ghz option is slower yes, but its something they can live with anyway due to the way they work. So why not 1 less cable

Yeah, i can understand not wanting cables on a phone that moves around...
But it makes no sense whatsoever on a static device like a tv, that not only stays in one place but also already has a cable for power at least.

 

[bert64]

Tidyness, i have a printer in my home that is right next to a LAN point. But i gave that LAN point to a Wifi POE AP and just let my printer run on Wifi

Especially for devices like printers and IOT stuff that run on 100Mbps LAN, usually their Wifi 2.4Ghz option is slower yes, but its something they can live with anyway due to the way they work. So why not 1 less cable

Because it all adds up - every device will send regular keepalives as well as background/broadcast traffic, and if it's based on an older wifi spec those keepalives will consume larger timeslices from the channel.
By contrast the existence of a 10mbps or 100mbps device will cause no degradation to other faster devices on a switched network.
Devices within range on the same channel will coordinate to share airtime, but anything thats just outside of usable range will not be able to coordinate and will be classed as noise.
Despite being adjacent to the ap, neither device is likely smart enough to identify this and reduce its txpower to the minimum either.
The printer will have a power cable anyway, and you could get an access point with an inbuilt switch to provide a few more ports in the area.
There are various ways to conceal cables if thats what you're concerned about, and this can be applied to the power cable too.
If you imagine an average HDB block where every resident has a couple of devices like this it makes a significant difference.

 

[BBCWatcher]

Because it all adds up - every device will send regular keepalives as well as background/broadcast traffic, and if it's based on an older wifi spec those keepalives will consume larger timeslices from the channel.
[….]
If you imagine an average HDB block where every resident has a couple of devices like this it makes a significant difference.

It’s possible to reduce these ”naughty neighbor” effects with a little knowledge. Examples:

• Disable 802.11b and 802.11g if all your devices support at least 802.11n (“ Wi-Fi 4”) or 802.11ac (“Wi-Fi 5”).
• Disable the one or two slowest 802.11n/802.11ac rate sets (typically).
• Disable Long Guard Interval (Long GI). Use only Short GI.
• Do NOT use 40 MHz wide channels on 2.4 GHz.
• Do NOT use 2.4 GHz channels other than 1, 6, 11, or (if available) 13.
• Use wired instead of wireless links between access points (if you have more than one wireless access point). For example, if your home has coax cables in the walls, use that wiring with MoCA adapters.
• DO consider using the 20 MHz wide Channel 165 in the 5 GHz band for guest networks, “Internet of Things” devices such as appliances and TVs, printers, and other devices that don’t need maximum attainable throughput. Almost nobody seems to want this channel, and that’s a good thing.
• DO consider reducing maximum transmission power, especially for 2.4 GHz Wi-Fi radios.
• Make sure your wireless access points are set to the correct country.
• If you have devices that support Wi-Fi 6E or Wi-Fi 7, consider getting them shifted onto a 6 GHz channel using a wireless access point that supports Wi-Fi 6E or 7. This’ll help reduce congestion on 5 GHz. (Eventually 6 GHz will get congested, but for now it helps.)
• When you’re moving a lot of data — backing up 1 TB from your laptop to your NAS, for example — use wired connections across the entire transmission path.